If the ground on the outside of the pool is is reasonably wet you may find that water will seep into the pool where it leaks. Be careful with an empty pool ground water can make them float up and out of position if you do not have a hydrostatic valve in the bottom.
You have a vacuum leak in the fan control system somewhere... not easy to locate the leak
Detailed instructions on finding and repairing swimming pool leaks can be found at the article links added to the left.
You do have a leak in the system and the best way to locate it will be by using a dye and a fluorescent light.......... The most common leak for this truck will be the evaporator in the dash....
It means you have a coolant leak. It could be coming from many possibilities, some easy to repair and others not so easy. You are going to have to do some detective work to locate the source of the leak then re-post question with that info.
You will have to locate the source of the leak before you can fix it. Re-post with your findings.
Your radiator appears empty because your cooling system has a leak.
A pressure test is done to locate a leak if you can't visually see where it is coming from.
Metal detector
That is impossible. There has to be a leak.
While this may sound difficult, you can save money if you can locate the leak for the plumber.
There are several seals and gaskets that could leak. You will have to do a little detective work to locate the source of the leak.
Most stop leak additives do nothing but empty your wallet. Replace the gasket that is leaking.